Putty plow



April 1942- P. J, ANDER-SON 2,279,727

PUTTY PLOW Filed Nov. 24, 1959 Patented Apr. 14, 1942 UNITED ST TES PATENT OFFICE.

Application November 24, 1939, Serial No. 305,951

3 Claims.

This invention relates to cutting tools and particularly to glaziers tools for removing putty and thelike from window sash frames.

Among the main objects of this invention are:

To provide an improved form of hand-operated tool for removing putty and the like, from sur faces'such as the glass and sash bars of'windows;

To provide a tool of this kind that can be conveniently guided by the operator so as toremove putty or the like in any condition of hardness without risk of injury to the sash frame, or other surface to which the putty adheres;

To provide a tool of this kind that will readily dislodge and remove glaziers points simultaneously with the removal of putty from a window sash; without injury to the tool or the sash;

To provide a tool of this kind that may also function as an implement for driving glaziers points:

To provide a tool body for the purposes described so arranged with respect to its handle that it will be practically impossible for the operator to injure his hands through slipping of the tool;

To provide a tool handle constructed so that it 1.9

may be attached to the garment of the user in an improved manner.

Other objects will be apparent to those skilled in this art, and will appear from the following description of the specific embodiment of the invention illustrated by the accompanying drawing in which:

Fig. 1 is a top view of' a putty plow embodying my invention;

Fig. 2 is a side view of the same viewed from the bottom of Fig. 1;

Fig. 3 is a fragmentary perspective view of the embodiment of Fig. 1;

In the form shown in the drawing, the putty plow consists of an elongatedprismatic body I Fig. 4' is a sectional view taken from the plane 44 of Fig. 2 illustrating the manner in which the shank of the handle is fastened to the body block;

Fig. 5 is a fragmentary elevational View illustrating the relation of the body of the tool to a window sash and pane in the act of removing putty therefrom;

Fig. 6 is a similar fragmentary view illustrating a preferred procedure in the operation of the tool;

Fig. 7 is a fragmentary view of the window pane and sash showing how the tool is :manipulated for driving glaziers points;

Fig. 8 is a view illustrating the manner in which a bar of tool steel may be out without waste in roughing out the body portions of the tool.

of suitable polysided cross section. A squaresection is preferable, although not necessary, because it lends itself to ease of manufacture and assembly as will hereinafter appear. Two planar sides of the body indicated by the reference numerals 2 and 3 meet at an angle to each other in the corner line 4, and at a right angle when square section stock is used for its manufacture. The front endsurface 5 is also planar but is inclined to the corner line 4 so as to form therewith acute-angled cutting edges 6 and 1 meeting in a sharp tip 8.

Therear end 9 of the body block is disposed at an angle, such for example as a right angle, to the side faces 2 and 3.

The handle I0 is made from a round bar of metal bent upon itself'in loop form to fit the hand of an operator, with an open gap at H whereby the tool may be conveniently suspended from a workmans clothing by inserting the free end portion l2 into a pocket or behind a belt, or the like. I

The shank 13 of the handle is flattened to form a pad I l-which is rigidly secured by two rivets I5 to the body and the shank extends in such a direction rearwardly and upwardly from the tip 8 that the handle proper or portion l0 where it is gripped by theoperator will be spaced well away from any surface upon which the tool is operated. To this end it is approximately mid-way between planes of reference defined by the-guide surfaces 2 and 3.

The body I ispreferably formedof hardened tool steel andis preferably cut from a' bar of square cross section because this form lends itself to economy of manufacture since it simplifies the attachment of the handle to the body portion; the drillingthereof for the rivets; and the handling and holding thereof for grinding, polishing and finishing operations.

It will be readily understood that when a square bar is held in a position corresponding to that in which the body I is disposed in Fig. 3, it can be cut up into a succession of such body shapes by making inclined cuts [6 and right-angled cuts l1 alternately as suitable spacing as is illustrated in Fig. 8 of the drawing.

In operation the tool is guide by the surfaces 2 and 3. These surfaces slide along the surface planes of the work which is being operated upon, and serve to guide the cutting edges 6 and I so that they will travel level courses. If the heel end 9 is lifted slightly with respect to either of in two or more cuts, the first cut extending only part way through the depth of putty and succeeding cuts running at deeper levels. In this manner it is possible to manipulate the tool with great precision and without the possibility of injuring the work that is being operated upon. The hardness of the cutting edges prevents their being injured by the relatively soft glaziers points and hence the tool removes these points as it traverses the work without requiring special attention to the location of such points.

In order to drive a new glaziers point, the tool is rested on the pane with its heel 9 in engagement with the glaziers point and the point is then driven by a pull on the handle.

It is well known that a chisel type of implement, such as is ordinarily employed for removing hard putty, requires the application of tremendous pressure toits handle and will not feed into the putty and when the putty is firmly stuck to a wooden sash, such chisel type tool has a tendency to penetrate and split the wood.

In using the herein-described tool, thepeculiar angular disposition of the two cutting edges 6 and 1 tends to feed the point into the putty but the guiding surfaces 2 and 3 force it to travel a level course unless the handle is manipulated to obtain greater or lesser penetration as may be desired. In this way, the power that has tobe applied to the handle can be controlled by the depth of the cut and a succession of cuts can be made. V,

' ltis best not to try-to remove all of the putty in one cut but rather to plow off the putty in layers, using either the wood side or the glass side as a guide. It is preferabl to insert the point of the plow-into'the putty at the outer edge of the putty next to the wood or metal side of the window 'sash andproceed by peeling or plowing out the putty in layers, the hardness of the putty or other factors controlling the depth of cut in any particular instance; The operation can be performed with rapidity because the tool can be guided accurately with little effort and no danger of injuring either the work or the operators hand by slipping of the tool from a normal-course.

I It is an important advantage of my invention that in its use, either to remove putty or to drive glaziers points, it is not necessary to remove the window sash from the window frame or building; this is due to the shape of the tool proper and to the angular disposition of the handle. When driving glaziers points in a sash without removing it from the frame, it may, in some cases, be desirable to present the tool to the glazierspoint as shown at IA in Fig. 7, in dotted lines, and wherein as shown, and as will be understood, the body I may be slid back and forth on the face of the pane and the face 2 of the body caused to strike blows on the point to drive it.

Although but one specific embodiment of this invention is herein shown and described, it is to be understood that details of the construction shown may be altered or omitted without departing from the spirit of the invention as defined by the following claims.

I claim:

1. A putty plow comprising a block body of rectangular cross-section and having parallel planar top and bottom surfaces and parallel planar opposite side surfaces and having a transverse rear end surface, and having a forward end surface substantially in a plane at an acute dihedral angle with the bottom surface and with one side surface and at anobtuse dihedral'angle with the top surface andthe. other side surface, thereby providing. a forward point and cutting edges rearwardly inclined from the point, the cutting edges being respectively at the forward terminations of the bottom surface and said one side surface, and a handle secured to the top surface and extending rearwardly at an angle to the bottom surface and at an angle to the side surfaces.

2. A putty plow comprising a body hating a planar bottom surface, a top surface above the bottom surface, and a side surface at a dihedral angle of not more than 90 with the bottom surface, and having a transverse rear end' surface. and having a forward end surface in substantially a plane at an acute dihedral angl with the bottom and side surfaces thereby providing a forward point and two cutting edges rearwardly inclined from the point, the cutting edges being at the forward terminations of thebottom and side surfaces, and a handlesecured to the'upper surface and extending rearwardly at an angle to the side surface and at an angle to the bottom surface. v

3. A putty plow comprising a bodyhaving .a planar bottom surface, a topsurface above the bottom surface, and a side surface at a dihedral angle with the bottom surface, and having a transverse rear end surface, and having a forward end surface at an acute dihedral angle with the bottom and side surfaces thereby providing a forward point and two cutting edges rearwardly inclined from the point, the cutting edges being at the forward terminations of the bottom and side surfaces, and a handle secured tothe upper surface and extending rearwardlyfrom'the body and having a grip portion displaced inwardly from the plane of the side surface and displaced upwardly from the plane of the bottom surface.

PERLE JAY ANDERSON. 

